EA-PUL 11500-120 6U WC Programmable Regenerative DC Load with Water Cooling

The EA-PUL 11500-120 6U WC is a high-power, programmable electronic DC load unit featuring advanced energy recovery technology. As part of the EA-PUL 10000 series, this 60 kW model operates over a wide DC input range of 0 - 1500 V and 0 - 120 A, making it an exceptionally versatile tool for testing high-voltage power supplies, batteries, fuel cells, and on-board chargers. Its standout feature is the regenerative capability, which feeds up to 96.5% of the absorbed DC energy back into the AC grid with high efficiency, significantly reducing operational energy costs and heat generation compared to traditional resistive loads. The integrated water cooling (WC) option ensures optimal thermal management for continuous high-power operation. Designed for scalability, it can be seamlessly paralleled with up to 64 units of the same voltage class via the built-in Master-Slave and Share-Bus, creating systems with power up to 3840 kW that behave as a single, coordinated unit. Equipped with multiple galvanically isolated interfaces (USB, Ethernet, Analog) and support for optional industrial protocols (CANopen, Profinet, Modbus, etc.), it integrates easily into automated test stands. The device offers precise regulation in CV, CC, CP, and CR modes with fast crossover and high measurement accuracy, backed by comprehensive protective functions.

Key Features

• High-Power Regenerative Load: 60 kW unit that recovers and feeds energy back to the grid with up to 96.5% efficiency, cutting energy costs and cooling requirements.
• Wide DC Input Range: Covers 0 - 1500 V and 0 - 120 A, providing extensive testing flexibility for various high-voltage applications.
• Scalable Parallel Operation: Master-Slave and Share-Bus enable parallel connection of up to 64 units (3840 kW total) that operate as one system.
• Advanced Cooling Option: Water cooling (WC) version ensures reliable thermal performance during continuous, high-power testing.
• Multiple Control & Interface Options: Features CV/CC/CP/CR modes, SCPI/ModBus command sets, isolated analog I/O, USB, Ethernet, and optional industrial fieldbus cards.
• Precise & Reliable Performance: High measurement accuracy (voltage ≤0.05% FS, current ≤0.1% FS), excellent line/load regulation, and robust protection (OVP, OCP, OPP, OT).
• Application-Focused: Ideal for battery testing (cell/module/pack, SOH, EOL), fuel cell characterization, on-board charger (OBC) tests, and battery recycling processes.